Window



Nqv. 7, 1950 n.5. sTuRMAN 2,528,800

l wINnow Filed oct. 1s, 1945 3 sheets-sheet 1vv uunnununnnnnul Innun- R. E. STURMAN Nov. 7, 1950 WINDOW Filed Oct. 13, 1945 Nov. 7, 1950 R. E.. sTuRMAN 2,528,800

wmnow Filed oct. 15, 1945 v 3 sheets-sheet s Patented Nov. 7, 195() UNITED TATES f FTfvEiNT AOFFICE WINDOW Roberts. sturman, MinnepmiaMin. neplianonfoewber13, 1945,seeia1Nafczazzv 2 Ulaims.

This invention relates generally to improvements ein Windows and vmorefspecically to windows ofthe-type having-an linner swinging sash carrying frame pivotally .supported in-an louter, stationary main frame so that the inner frame may be turned as a oonveniencein -washingouter surfaces of the sash from within the building, or forinstalling screens, stormsash and like operations.

The primary object-offmyinvention is to :provide a window-of this character embodying improved. sealing means Vfor maintaining a weather tight seal around the inner frame and between inner `and'guter frames at all times. Another object is to provide` a window construction wherein the inner frame may becompletely closed within fthe outer frame vand vthereflocked in either of its-two positions, so that thewindow cannotfslam about inV the wind-while it is being vwashed, or otherwise worked upon. Still another objectjis toeprov-ide a window construction of the foregoing nature-in a simple, durable; and comparatively inexpensive form. Y Y

These and othermore detailed and specific -objects will be disclosed in the course of the vfollowing specification, reference being Ahad to the accompanying drawings, in Vwhich Fig. `l .is -an inside elevationof IawindoW'constr-noted :in Yaccordance with my present inven tion.

Fig. 2 is an enlarged horizontal sectional View along the line 2 2 in Fig. 1, showing the inner or swinging frame in its normal position.

Fig. 3 is a similar view but with the inner frame swung about through one hundred and eighty degrees, disposing the outside of the frame in position for work from within the building.

Fig. 4 is an enlarged vertical section along the line V4--4 -in Fig. 1, with a lower part of the window broken out.

Fig. 5 is a detail view along the line 5-5 in Fig. 1.

Fig. 6 is a perspective view of the sealingr mechanism with associated pivot pins.

Referring now more particularly and by reference characters to the drawing', A designates generally the outer stationary window Aframe of my Window, which frame is secured to and within an opening in the building wall B. `Within said frame A is an inner swinging sash frame C and supported therein are the upper, outer sash D and the lower, inner sash E.

The main or outer frame A is rectangular or any suitable shape and size and comprises upright sides l0 and Il, a lintel l2 and a sill I3. As

, L2 heresho-wn this lframe isfformed of metal eX- trusions Asuitably shaped to t lthe wall B and in kaccordance with my invention `the sides t@ and i l are arcuately concaved onftheir inner surfaces, and *ink the horizontal plane as indicated at i4 in Figs. 2 and 3 to provide clearance for the swinging y*sash `frame C. Further in accordance with my invention, the frame Ais provided with a sealing bead or rib l5 running vertically along the-inner surfaces of the sides l0 and il and across the lower `and upper surfaces, respectively, of the lintel i2 and sill I3. rIhis bead Yl 5 is located centrally with reference to the thickness or depth of the 4frame and its opposite 4inner and outer edges are Vbeveled to --form reentrant angular grooves I6.

vThe frame -C dis Vlikewise formed of metal. extrusions and, while smaller than the window frame in order to fit therein, alsocomprises up,- rgh-tlsides or stiles I1 and i8, a header or top cross member I9 and a lower cross member 20. At the Ycenter, top and Ibottom of the frame 'C there are providedpivot pins A2| and `22 whichextend respectively upwardly and downwardly therefrom. These pivot pinszl and 2/2 Aare rotat ably mounted Iin suitable sockets 23 provided in the lunderside of the lintel I2 and upper surface ofvthesill i3, and it will thus -be seen that the sash frame C is vsupported vfor swinging movements about-a central, upright axis within the frame A. As seen in Figs. `5 and 6 the pins 2l and 22 have square bases l24 which are secured to the frame C. vThe frame 'C has flanges Z5 and 26 around its inner and outer edges, and at top and bottom, in order to confine .inV place -the upper and lower sashes D and E, and also-vat top and bottom the trame has centrally located and transversely extendi-ngribs or dividing webs 21 and 28. Extend?- ing lbetween the webs 21 and 26 are upright parting strips v2-9 on each side I-'l and i8 of the frame C and ythese elements, along with thel flanges A25 and '2 6 Acooperate to form separate up'- rightguideways for the sashes. The sashes D and are, vr.of course, arranged for relative upward and downward movements on these guidewaysY and at this .point it is sufcient lto state that'th sashes comprise, as Ahere shown, frames and 3|, respectively, of metal extrusions, provided withsuitable grooves in which the glass panes 32 and 33 are set.-

vAround .the outside of the entire sash frame C, I provide a wide shallow channel indicated at.34 and .in this channel mount slid-ing sealingstripsor bands 35k and36 each Vof which is shaped tot along one halt, approximately, of the top Y e and bottom of the frame and its full height. The upper and lower ends of the strips 35 and 36 thus extend in opposite directions from each side of the pivot pins 2| and 22 and they are notched as indicated at 3l (Figs. 2, 3 and 6) to clear the bases 24 of the pins. The sealing strips are each narrower than the channels 34, so that the strips may move inwardly and outwardly with respect to the building wall in these channels, and the strips are retained in place but allowed to Yso slide by retaining strips' 38 and 39 which overlie the channels.v Projecting from` the center of the sealing strips 35 and 35, and' extending the full length thereof, aresealingi beads or ribs 4B and 4|' and these project'y upwardly, laterally and downwardly from the corresponding parts of the frame C in l order to" engage the ribs I5 around the inside of the framey to move inwardly Yand outwardly as described,Vv

without interference. 1

The parts are so tted that, in the normal position of the window (Figs. 2 and 4) the sealingstrip 35 at the one side of the window will be outwardly disposed in itschannel 34, and the bead 4l) on this strip will'engage theY outer grooved edge of the sealing rib I6. At the same time, the strip 36 at Ythe oppositeside of the Window is oppositely positioned, inwardly in its channel 34, and with its bead 4I in engagement with the inner grooved edge of the rib l5. Thus it will be apparent that the sash frame C vis locked against swinging movement in one direction only and by swinging it in the opposite direction, or counterclockwise as viewed in Fig. v2, the beads 4u and 4I may move away from the opposite sides of the ribs l5 andthe frame may be swung through a complete half turn to the position of Fig. 3.. YAt this point the bead 4| now engages Y and comes to rest against the inner Vgrooved edgev of the rib B5 and the strip 35 slides in the channelr34 a distance equal to the width of the rib I5 to compensate for the width between the grooves I5 and permit a vfull half turnV of the window. In a similar manner the bead 4U now comes to rest against the outer grooved edge of the rib I6 at the opposite side of'thewindow and the strip 35 slides outwardly in its channel 34 by the same amount and for the same purpose.

It will thus be apparent that the respectivev dicated in Figs. 2, f3, and 4 at F, is positioned for convenient removal and replacement. When the work is completed the frame C is returned to normal position by swinging itthrough a half turn in an opposite direction, or clockwise as viewed in the drawing, and back to the position of Fig. 2. 1

It will be noted that ther frame C carrying the sash moves through a icomplete half turn and that the frame in either of its two positions is wholly Vwithin the window frame'A. Thus the Window cannot be caught bythe wind and slammed about while being worked upon, and the Weather is excluded 'at'alltime'sl I have indicated also means for locking the window in each position and as here shown such means comprises upper and lower latches 42 oscillatably mounted at one side of the window frame A within the building and projecting into engagement with recesses 43 in one side of the frame C. By turning the latches 42, however, they mayrclear theY lower latches may be mechanically connected or ganged to operate simultaneously from a single knob, if desired.

4To AcooperateY with the reentrantly angular 'L grooves i6 the sealing beads 4D and 4l have their -The upper and 'lower sash frames 3G and 3l' have meeting rails'41 and 48 which are hollow or counterbalanced by the springs, as more completely described in my patent, and the usualz and in the transverse channels thus formed withinthe '-rails I"'provide spring counterbalancing means for the sashes. These counterbalancing means are similar to thos'e shown in my prior patent No. 2,116,329 issued-May 3, 1938 and since they are not claimed herein, will be only briefly described. Thus each-comprises a shaft 49 which is journaled in the meeting rail through the hol'" low channel therein and carries a gear pinion 50 at each end. Coiled around the shaft 49, inside the meeting rail, is a torsional coil spring 5I secured at one end at 52 to theshaft and secured at its other end to a collar 53 which is journaledf is put under increasing tension as the lower sashV is lowered and thegears 50 roll along the upperv rack teeth 54. Likewise 'as the upper sash is lowered its gears 55 travel along the lower racky teeth 55 to turn the shaft 49 and tension-the spring. Theweight of the sashes is thus offset sash cords and Weights are not necessary. Installation of my window in present buildingsmay bereadily madeby simply securing the` outer frame A in the old wooden or metal frame, after removing the old window and its stop and parting strips.

pactness. f

*It is understood'that suitable modificationsj may be made in the structure as disclosed, pro-A vided such modifications come within the spirit.

4l. In a window of the character'di-zscribed,'a,

window frame, a sash frame arranged in said windowv frame and pivotally connected theretol whereby said sash frame may vturn in the window frame to and between two positions approximately a half turn apart, a xed sealing rib extending around the inside of one frame, and a sealing member on the other frame comprising two separate sections extending around the... frame at opposite'sides of the pivot connections In thiscase the flanges herek shown on the `frame A may beedis'pensed with, of, course, in the interests of simplicity and com-A and offset oppositely in inward and outward directions with respect to said pivot connections for engaging opposite edges of the Xed sealing rib, and said sections being supported for opposite inward and outward movements to accommodate themselves to engagement with the xed sealing rib in opposite directions as the sash frame is swung to its said two positions.

2. In a window of the character described, a window frame, a sash frame arranged in said window frame, pivot means connecting the sash frame to the window frame whereby said sash frame may turn in the window frame to and between two positions approximately a half turn apart, a xed sealing rib extending around the inside of the window frame, and a sealing member on the sash frame comprising two separate :sections extending around the sash frame at opposite sides of the pivot connections and offset oppositely in inward and outward directions with respect to said pivot connections for engaging opposite edges of the xed sealing rib,

said sections being supported for opposite inward and outward movements to accommodate themselves to engagement with the fixed sealing rib in opposite directions as the sash frame is swung to its said two positions, the adjacent ends of the said sealing member sections being notched to clear the said pivot means.

- ROBERT E. STURMAN.

REFERENCES CITED The following references are of record in the 'le of this patent:

UNITED STATES PATENTS Number Name Date 509,704 Thiel Nov. 28, 1893 607,427 Duval July 19, 1898 1,301,454 Kerr Apr. 22, Y1919 1,389,136 Hutchinson Aug. 30, 1921 1,414,583 Rothstein May 2, 1922 1,625,220 Mesker Apr. 19, 1927 

